Burlington Northern 6511 is leading a train at Northtown yard in Minneapolis, Minnesota on June 15, 1980. Number 6511 is an SD45 built by Electro-Motive Division (EMD), builder's number 37119. Photo by Al Christianson.

Burlington Northern diesel locomotive Number 6323, EMD SD40, works an eastbound freight at the east end of the Wishram, Washington yard, undated. Photo by Robert Johnston.

Burlington Northern diesel locomotive 6118 at Northtown Yard Minneapolis, Minnesota on February 24, 1981. Number 6118 is an SD9 built by Electro-Motive Division (GM), builder's number 24093. Photo by Al Christianson.

Burlington Northern diesel locomotive 5839 in a power lash-up at Omaha, Nebraska on August 4, 1979. Number 5839 is a U30C built by General Electric (GE), builder's number 40605. Photo by Al Christianson.

Burlington Northern diesel locomotive 5764 leading a train at Dayton's Bluff, Saint Paul, Minnesota on March 11, 1980. Number 5764 is a U33C built by General Electric (GE). Photo by Al Christianson.

Burlington Northern diesel locomotive 5750 at Mississippi Street yard southbound, leading a train with the Maryland Avenue East overpass in the background, Saint Paul, Minnesota on August 5, 1979. Number 5750 is a U33C built by General Electric (GE), builder's number 37987. Photo by Tom Carlson.

BN yard sign at Wenatchee, Washington, March 1970. Other Subject Classes: Yard Sign

Boise Cascade log yard at Hoquiam, Washington, in January 1975. Log loading yard, Burlington Northern flatcars loaded with logs. Photo by J.M. Fredrickson . Other Subject Classes: loading yard, freight car

American Rail Tours rail yard at Pompano Beach, Florida, on July 28, 1987. American Rail Tours (AT) yard at Pompano Beach Florida in 1987. Photo by J.M. Fredrickson. Other Subject Classes: rail yard, passenger

An aerial view of Spokane, Washington railroad facilities in 1961.